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Home >> Chevrolet >> 2006 >> Optra5 LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.0L (L34 GMDAT) - Introduction And Mechanical Repairs >> Repair Instructions >> Exhaust Gas Recirculation Valve Adapter Pipe Replacement >> Removal Procedure

Removal Procedure

    Fig 1: Identifying EGR Valve Adapter And Retaining Bolts
    GM1671469Courtesy of GENERAL MOTORS CORP.
  1. Drain the engine coolant. Refer to Draining and Filling Cooling System .
  2. Remove the valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .
  3. Remove the spark plug wires.
  4. Disconnect the exhaust gas recirculation (EGR) valve and the coolant temperature sensor (CTS) electrical connectors.
  5. Remove the heater return hose at the EGR valve adapter valve.
  6. Remove the EGR valve adapter bolts.
  7. Remove the EGR valve adapter and gasket.
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